Chapter 4 Transport Test

How many lobes does the right lung have?

• three lobes
• two lobes
• one lobe

Mainly water with dissolved substances, such as plasma proteins

• plasma
• white blood cells
• platelets
• red blood cells

______ is the "pacemaker"; initiates the AP that will cause the heart to beat.

• Sinoatrial Node
• heart
• Atrioventricular Node,

_______ receives and distributes the AP from the SA node down to the ventricles.

• Atrioventricular Node
• Sinoatrial Node
• electric events
• Venules

Composed of strong cardiac muscle tissue

• cells
• tissues
• circulation
• valves

These in each chamber of the heart keep blood flowing in one direction

• chambers
• valves
• blood vessels
• cardiac cycle

This is made when the SL valves close

• electrical events
• lub
• dub
• diastole

In the cardiac cycle, this is when the heart relaxes.

• Diastole
• Systole
• dub
• lub

Contractile cardiac muscle cells are responsible for the

• heart's pumping
• carrying blood away from the heart
• delivering the blood to the heart

3 major structures of the cardiovascular system

• heart
• blood
• blood vessels
• tissues
• cells